As the city Boston shut down Friday during the manhunt for the marathon bombers. Question kept rearing its head would law enforcement use of the loan to help locating capture the suspects. From controversial US attacks on alleged terrorists in Pakistan and Afghanistan to do it yourself gadgets you can -- on the Internet. -- seem to be everywhere Martha Raddatz went to find out who's watching you. On the outskirts of Miami. Pilots from the Miami Dade police department's aviation unit are assembling their newest tool in law enforcement. Weighing in at just under twenty pounds this micro air vehicle or map. Is one of two -- in their arsenal there and carries a payload of a single camera. It basically assist us in getting an aerial view for the the ground units to commanders the incident commanders and first responders on the scene. So that they can better prepared to approach a situation. Miami Dade is one of more than a dozen law enforcement agencies which are incorporating drones into daily operations. A although their use is heavily regulate. Content to sit. And say -- a flight ST from the station. And we're gonna surveillance city that doesn't work that way we can't fly over populated areas -- or we can't find their high -- -- -- important chuck. When your parents and check. Night playing recently visited during an exercise -- the man flew in support of a swat team operating on the ground. In this simulation I suspect has escaped from custody and the map will be used to see in real time what is -- Happening during the search. Has the man gets into position over the area where the suspect is believed to be quiet sort. Cameras captured him sprinting across a clearing and into a building again that is good news on. At the command post the images from the -- -- the incident commander -- the swat team into position. -- there's -- building on the south side of the -- subject was last seen running into the. Doorways along the western wall with the drone overhead in the swat team outside the door this suspect is quickly apprehended. Surrendered right now we're hoping to uses for tactical situations where we have somebody shooting at the police. We don't want obviously put any police -- lives in danger despite the benefits of using drones there are growing concerns about. Privacy we don't want to see this drones use to hover over our neighborhoods 24/7. Bad keeping track of everywhere that we drive or walk in the technology is there to do that. The FAA estimates that some 101000. Commercial drones will be flying in the nation's skies. Within five years. To the future and look to this guy is what do you say. I see hundreds of thousands of vehicles flying being manufactured every year. Banking on that growth is retired air force colonel and F four pilot Jerry LeMieux. When you think about the future focus on the hundreds of commercial applications that these vehicles can be used for. Such as agriculture the news media's big sports events. LeMieux has just started up the first unmanned vehicle university. Most of the teaching is done online offering master's and doctorate degrees with courses in radar sensors project management and mission design. As well as intensive weekend programs. And for those like Justin -- who want to learn how to fly unmanned aerial vehicles the university offers a three day. Hands on course. In the future what I want to do is get into what they call precision agriculture so that I could go and help spot the troubled areas in the fields and help the farmers. Increased their crops can turn our turn night. Line dropped in on -- latest session held at a model airplane field in Sarasota Florida. -- had practiced on a computer simulator before arriving. And once Justin and -- hastened my instructor with forty years of experience watched the fixed wing drone called a sky -- I took over the controls and right. Wearing goggles I see what this -- proxies. And it turnaround 180 -- going to be heading west OK there four point OK and the runway -- I made a few laps over the -- -- and then Justin brought the sky hockey and for a landing. Can just keep this week's level. New Merck. The loud just -- per fact. About working with drones isn't all about flying. With the aerial cameras and other sensors -- -- university gives students a chance to operate those systems as well. Using a helicopter -- drone that can -- That's what -- up for about twelve minutes all by itself. This drone carried a camera that could shoot videos and -- photographs give much higher resolution than video. -- more and more drones take to our skies. Congress has -- the FAA -- come up with rules to fully integrate drones into the nation's airspace by 2015. And Jerry LeMieux and -- unmanned vehicle university will be standing by Iraq. Controller in hand with the next generation of ground pilots and graduation he did a fine job. For Nightline I'm Martha Raddatz in Sarasota Florida -- out.

This transcript has been automatically generated and may not be 100% accurate.

{"id":19027937,"title":"Drones: Headed for Commercial Use?","duration":"3:00","description":"A drone school teaches students how to build and fly unmanned vehicles.","url":"/Nightline/video/drones-headed-commercial-19027937","section":"Nightline","mediaType":"default"}